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The Improvements To Copper Casting Machine For FerroalloysBy A. More, J. M. Míguez, J. Bullón
In 2000 Ferroatlantica started a project with the aim to develop a new casting machine for silicon and other ferroalloys. Until now, it has been cast more than 25.000 tons of silicon for the chemical
Jan 1, 2007
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Identificación, desarrollo y control de proyectos con metodología six sigma en la planta de óxidos de Xstrata Tintaya S.A.By Gualberto Carpio
El presente texto señala la metodología desarrollada en Tintaya para la identificación de posibles proyectos, los cuales están enfocados con los objetivos del negocio y del líder del área ya que compa
Sep 19, 2006
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Metal-slag equilibria and behavior of impurity oxides in ilmenite smeltingBy J. Pesl, R. Hurman Eric
Metal-slag phase compositions of molten iron and ilmenite smelting slags or solid titanate phases were determined between 1500° and 1700°C. The influence of oxygen partial pressure and impurity oxide
Jan 1, 2005
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The Candelaria Concentrator Expansion ProjectBy D. L. Ogonowski, J. O. Marsden
The Candelaria copper-gold mine is located approximately 25 km south and east of Copiapo in Region III, Chile. The original concentrator was designed to treat 28,000 t/d (30,800 stpd) of chalcopyrite
Jan 1, 1999
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Optimization of the compaction of hard-metal powder for the production of cutting tool inserts - SynopsisBy K. Blaski
his paper reports an investigation aimed at optimizing the compaction of granulated hard-metal powder for the production of cutting tool inserts. The optimal compaction is that which yields optimal sh
Jan 1, 2007
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Simulation Of Time-Dependent Crush Pillar Behaviour In Tabular Platinum Mines ? SynopsisBy J. A. L. Napier
It has been established that significant time-dependent stope convergence may occur over time periods of hours and days in certain hard-rock gold and platinum mines. The source of this time-dependent
Jan 1, 2012
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Tunnel Excavation Grand Coulee Third Power PlanBy D. J. Duck
INTRODUCTION Construction of the 3,600,000 kilowatt Third Powerplant at Grand Coulee Dam started in late summer 1967 approximately one year after authorization by Congress. The project was made pos
Jan 1, 1997
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Horizontal Stress and Coal Mines: Twenty-Five Years of Experience and PerspectiveBy G. J. Hasenfus
Although theoretical and conceptual knowledge regarding the impact of horizontal stress on underground coal mining excavations have existed since at least the mid-1900s, it wasn?t until the late 1970?
Jan 1, 2006
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Design Considerations For Underground Subway Station - IntroductionBy Mohammed Z. Islam
As cities are growing all over the world, the need for urban transportation facilities are on the rise. Designers (of these facilities) today are faced with a number of constraints for their design, o
Jan 1, 1993
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RI 7130 Application Of Filiform Tungsten To Reinforce MetalsBy A. G. Starliper
The Bureau of Mines made laboratory investigations to determine the feasibility of utilizing fine tungsten wires to reinforce a number of nonferrous metals and alloys and a superalloy, S-8l6. The comp
Jan 1, 1968
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Jacksonville Plant TitaniumBy J. C. Detweiler
THE Jacksonville plant of Humphreys Gold Corp., operating under leases from National Lead Co. and Rutile Mining Co. of Florida, recovers rutile, ilmenite, zircon, and monazite from an ancient beach de
Jan 1, 1952
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Rutile – Zircon Mining on East Coast Surfing BeachesRutile – Zircon Mining on East Coast Surfing Beaches – Rutile-Zirconium Producing Companies in Australia
Jan 10, 1964
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Minor Pyrometasomatic Mineralization in the Wuuluman Granite, Central Western New South WalesThe occurrence of molybdenite in a small shaft in the western margin of the Wuuluman Granite in central western New South Wales is noted. Full petrographic and mineragraphic descriptions are given of
Jan 1, 1968
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The Interaction of Synthetic Chalcopyrite with Silver and Cupric Ions in Sulfuric Acid SolutionBy Ahmad Ghahreman, Lin Li
Silver and cupric ions have been proven to play the roles of catalysts to promote the oxidation kinetics of chalcopyrite in acid solution. In this study, the interaction between silver ions and cupric
Jan 1, 2019
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Paper No. 179. Concentration of Fine Sands on a Belt Vanner.THE machine from which the following results were obtained makes one of a row of seven at work in the Junction North, Concentration Mill at Broken Hill, New South Wales. It consists essentially of a b
Jan 1, 1909
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RI 8389 Triggered Barriers for the Suppression of Coal Dust ExplosionsBy I. Liebman
Two triggered barrier systems and several extinguishing agents were tested against coal dust explosion propagating in the main entry of the Bureau of Mines Experimental Mine at Bruceton, Pa. One syste
Jan 1, 1979
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Case study ? ventilation planning for Bog Zone, Lisheen MineBy K. Hopperstead
Ventilation planning in trackless metal mining is often taken for granted. This paper highlights the trials of planning and executing the ventilation design for Bog Zone at the Lisheen Mine. Ventilati
Jan 1, 2009
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Special Foundation Technique For The Intersection Of Two Canals Near Magdeburg, Germany - Summary:By Wolfgang G. Brunner
The closing of the gap in the European waterway- net is one of the big and challenging traffic projects following the German reunification. The water canals in the North German plain connect the Rhine
Jan 1, 2000
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The Aluminium Smelter at Tiwai PointMy speech this morning is not a technical one, rather I will aim to tell you about the New Zealand Aluminium Smelters Limited and how I see it fitting into the Western World aluminium scene.
Jan 1, 1983
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Optimizing the Initiation Position of Geophysical Exploration ChargesBy E. McCullough, D. Preece, M. Ortel
Geophysical explosive charges are used in mineral resource exploration. They are detonated subsurface and radiate sonic waves into ground monitors, which detect the vibration waves and their interacti
Jan 1, 2013